The entire concept of running a custom ramdisk on the iPhone XR hinges on a powerful vulnerability known as (pronounced "checkmate"). Publicly disclosed by security researcher @axi0mX in September 2019, Checkm8 is a bootrom exploit . The bootrom is the very first, read-only code that runs when an iPhone is powered on. It is stored in the device's hardware and cannot be altered or patched by a software update.
Working with an iPhone XR ramdisk carries inherent risks that you must consider before proceeding: iphone xr ramdisk
If you have proof of purchase for an iPhone XR, Apple will remove an Activation Lock. However, some third-party repair shops use ramdisk tools (like "iRemove" or "Checkra1n-based variants for A12") to bypass the lock on devices where the previous owner cannot be reached—though this remains a legal gray area. The entire concept of running a custom ramdisk